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Finding the Fourth Proportional to 647.93, 894.18 and 368.16

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Solution

The fourth proportional to 647.93, 894.18 and 368.16 is: 508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.93 : 894.18 = 368.16 : x
  2. Step 2: Convert to fraction form
    647.93/894.18 = 368.16/x
  3. Step 3: Cross multiply
    647.93x = 894.18 × 368.16
  4. Step 4: Simplify right side
    647.93x = 329,201.31
  5. Step 5: Solve for x
    x = 329,201.31/647.93
  6. Step 6: Final answer
    x = 508.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.